<html>

<body>

<select id="combo1">
<option value="0"  >Pos 1</option>
<option value="1">Pos 2</option>
</select>

<input type="button" value="visualizar" onclick="LoadImage()">

<img src="#" id="imagen1">


<script language="JavaScript">

var Latitud=new Array();
var Longitud=new Array();
Latitud[0]="-12.0000937"
Longitud[0]="-77.0404115"
Latitud[1]="-12.0001117"
Longitud[1]="-77.0406665"

function LoadImage( ){


var combo=document.getElementById("combo1");
var indice = combo.value;
var lat=Latitud[indice]
var lon=Longitud[indice];
var x=document.getElementById("imagen1");
var xInternal1=document.getElementById("Internal1");
var imageurl="http://maps.google.com/staticmap?center=" + lat + "," + lon + "&markers=" + lat + "," + lon + ",red&zoom=14&size=600x400&;&key=ABQIAAAAR-_D972kTt48vkHY1XkPmxSsu9kPFTNklwbEmDP8PyhZRumioxTOybfyNQxaU2qu-VcIZdXQkRSxkA";
 
x.src=imageurl; 
}

</script>
 

</body>
</html>


 

